AMB M³ Headphone Amplifier

The M³, also called M3, M^3, M cubed, or MMM is a high-end Stereo Class A Headphone Amplifier with active ground designed by AMB Laboratories. (more about it here)

For my versions of the M^3, I have created a high quality, compact and sturdy custom made enclosure made of wood (available in Mahogany or Walnut) and aluminum which houses the M³ and its Power Supply (Sigma 11 set at 24V).

Optionally available with DC offset protection and delay muting circuit (Epsilon12) to prevent any turn-on and turn-off noise and protect your headphones.

Also available in Special Edition enclosure with a large 42x232mm opening in the aluminum top plate for improved ventilation above the Mosfets output heatsinks in order to set up a higher output bias current up to 120mA without overheating issues.

ALPS RK27 “blue velvet” high quality potentiometers for Volume and Gain control
Variable gain 2 to 17 – (upon request, it can be made with a fixed gain)
Output bias set to 85mA in standard version.
AD8610 opamps in the 3 channels (you can easily change for other opamps)
Neutrik 6,35mm jack
2 x Neutrik gold plated RCA for input

I use the M³ with my Sennheiser HD800 and a Marantz CD6004. The sound delivered by this amplifier is simply incredible: natural, very realistic, where every instrument is clearly separated, with a huge soundstage (on good recordings, you can pinpoint where each sound is coming from) and non-fatiguing for long listening sessions. If you enjoy headphone listening and if you are searching for an amplifier to drive your high-end headphones (in my opinion, it’s the perfect match for the HD800) and an affordable high quality headphone amp, the M3 is for you!!

You can see all the products currently in stock and the special offers by visiting this page.